| Value | Category | Cases | |
|---|---|---|---|
| 1993 | 1 |
1.5%
|
|
| 1994 | 1 |
1.5%
|
|
| 1995 | 1 |
1.5%
|
|
| 1996 | 2 |
3.1%
|
|
| 1997 | 1 |
1.5%
|
|
| 1999 | 1 |
1.5%
|
|
| 2000 | 2 |
3.1%
|
|
| 2001 | 1 |
1.5%
|
|
| 2002 | 3 |
4.6%
|
|
| 2003 | 2 |
3.1%
|
|
| 2005 | 4 |
6.2%
|
|
| 2006 | 2 |
3.1%
|
|
| 2007 | 2 |
3.1%
|
|
| 2008 | 3 |
4.6%
|
|
| 2009 | 5 |
7.7%
|
|
| 2010 | 1 |
1.5%
|
|
| 2011 | 2 |
3.1%
|
|
| 2012 | 2 |
3.1%
|
|
| 2013 | 10 |
15.4%
|
|
| 2014 | 10 |
15.4%
|
|
| 2015 | 8 |
12.3%
|
|
| 2016 | 1 |
1.5%
|
|
| 9998 | don't know | 0 |
0%
|
| Sysmiss | 38653 |